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LT3464

更新时间： 2024-09-14 22:46:55
品牌 Logo 应用领域
凌特 - Linear 转换器升压转换器
页数 文件大小 规格书
16页 261K
描述
Micropower Boost Converter with Integrated Schottky and Output Disconnect in ThinSOT

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中文翻译

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LT3464 技术参数

是否Rohs认证： 不符合生命周期：Transferred
零件包装代码：DIE包装说明：DIE,
针数：8Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.77模拟集成电路 - 其他类型：SWITCHING REGULATOR
最大输入电压：10 V最小输入电压：2.3 V
标称输入电压：3.6 VJESD-30 代码：R-XUUC-N8
JESD-609代码：e0功能数量：1
端子数量：8封装主体材料：UNSPECIFIED
封装代码：DIE封装形状：RECTANGULAR
封装形式：UNCASED CHIP认证状态：Not Qualified
表面贴装：YES切换器配置：BOOST
端子面层：Tin/Lead (Sn/Pb)端子形式：NO LEAD
端子位置：UPPERBase Number Matches：1

LT3464 数据手册

 浏览型号LT3464的Datasheet PDF文件第2页浏览型号LT3464的Datasheet PDF文件第3页浏览型号LT3464的Datasheet PDF文件第4页浏览型号LT3464的Datasheet PDF文件第5页浏览型号LT3464的Datasheet PDF文件第6页浏览型号LT3464的Datasheet PDF文件第7页 
Final Electrical Specifications  
LT3464  
Micropower Boost  
Converter with Integrated Schottky  
and Output Disconnect in ThinSOT  
U
January 2003  
DESCRIPTIO  
FEATURES  
The LT®3464 is a micropower step-up DC/DC converter  
with integrated Schottky diode and output disconnect  
packaged in an 8-lead low profile (1mm) ThinSOTTM. The  
small package size, high level of integration, and the use  
of tiny SMT components yield a solution size of less than  
40mm2. The LT3464 has a typical current limit of 115mA  
as well as fast switching speed to allow the use of a chip  
inductor and small ceramic capacitors. The internal PNP  
disconnects the output load from the input during shut-  
down, and also provides output short-circuit protection.  
An auxiliary reference input allows the user to override the  
internal 1.25V feedback reference with any lower value,  
allowing full control of the output voltage during opera-  
tion. This device features a low 25µA quiescent current,  
which is further reduced to less than 1µA in shutdown. A  
current limited fixed off-time control scheme conserves  
operating current, resulting in high efficiency over a broad  
range of operating current. The rugged 36V switch and  
output disconnect circuitry allow outputs up to 34V to be  
easily generated in a simple boost topology.  
■
Tiny Solution Size  
■
Low Quiescent Current  
• 25µA in Active Mode  
• 0.5µA in Shutdown Mode  
■
Integrated Schottky Diode  
■
Integrated PNP Output Disconnect with  
Short-Circuit Protection  
■
Internal Reference Override Pin  
■
16V at 8mA from 3.6V Input  
12V at 20mA from 5V Input  
■
■
Low VCE(SAT) Switch: 190mV at 80mA  
■
Input Range: 2.3V to 10V  
High Output Voltage: Up to 34V  
■
■
Low Profile (1mm) ThinSOT Package  
U
APPLICATIO S  
■
LCD Bias  
■
Handheld Computers  
■
Battery Backup  
■
Digital Cameras  
■
Cellular Phones  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
ThinSOT is a trademark of Linear Technolgy Corporation  
U
TYPICAL APPLICATIO  
L1  
22µH  
Efficiency  
V
IN  
2.3V TO 10V  
90  
6
7
V
= 8.4V  
IN  
V
SW  
80  
70  
60  
50  
40  
30  
IN  
3
5
V
OUT  
V
= 4.2V  
IN  
OUT  
16V  
1
8
C3  
CTRL  
C1  
1µF  
0.22µF  
LT3464 CAP  
C2  
0.33µF  
3.48M  
294k  
SHDN  
2
FB  
GND  
4
3464 TA01a  
C1: TAIYO YUDEN LMK107 BJ105MA-T  
C2: TAIYO YUDEN GMK212 BJ474MG-T  
C3: TAIYO YUDEN GMK212 BJ224MG-T  
L1: MURATA LQH32CN220K  
0.01  
0.1  
1
10  
100  
LOAD CURRENT (mA)  
3634 TA01b  
3464i  
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.  
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-  
tationthattheinterconnectionofitscircuitsasdescribedhereinwillnotinfringeonexistingpatentrights.  
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中文翻译

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